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Finding the Fourth Proportional to 507,779.60, 700,734.40 and 281,425.12

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Solution

The fourth proportional to 507,779.60, 700,734.40 and 281,425.12 is: 388,365.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,779.60 : 700,734.40 = 281,425.12 : x
  2. Step 2: Convert to fraction form
    507,779.60/700,734.40 = 281,425.12/x
  3. Step 3: Cross multiply
    507,779.60x = 700,734.40 × 281,425.12
  4. Step 4: Simplify right side
    507,779.60x = 197,204,262,608.13
  5. Step 5: Solve for x
    x = 197,204,262,608.13/507,779.60
  6. Step 6: Final answer
    x = 388,365.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.